Flash suppressor



FIG. 1 is a perspective side view of a flash suppressor showing my new design;

FIG. 2 is a side elevation view of the flash suppressor;

FIG. 3 is another side elevation view shown rotated 180 degrees from the position thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

The broken lines in the figure views depict portions of the flash suppressor that form no part of the claimed design. 

The ornamental design for a flash suppressor, as shown and described. 